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CORTEX presentation at NUGENIA 2017 Forum

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This is the presentation held at the NUGENIA 2017 Forum on March 29th, 2017 in Amsterdam about the CORTEX project (CORe monitoring Techniques and EXperimental validation and demonstration)

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CORTEX presentation at NUGENIA 2017 Forum

  1. 1. CORTEX – CORe monitoring Techniques and Experimental validation and demonstration Prof. Christophe Demazière Chalmers University of Technology Department of Physics Division of Subatomic and Plasma Physics SE-412 96 Gothenburg, Sweden demaz@chalmers.se Task Force on Deterministic REActor Modelling at Chalmers University of Technology
  2. 2. Background and motivation • Ageing fleet of reactors • Nuclear reactors operating closer to their safety limits • Advanced high-burnup fuel designs and core loadings  Important to maintain a high level of availability via:  Monitoring the instantaneous state of the reactor during operation  Detecting possible anomalies early on
  3. 3. Background and motivation • Fluctuations always existing in reactors even at steady state-conditions (due to turbulence, vapour generation, mechanical vibrations, etc.) Fluctuations carrying some valuable information about the system dynamics Conceptual illustration of the possible time- dependence of a process signal from a nuclear reactor      0 ,, X Xt tX  r rr
  4. 4. Background and motivation • Need for core monitoring techniques recently demonstrated by the increase in the neutron noise levels in some Spanish, German, and Swiss Pre-Konvoi PWRs Need to develop the necessary tools before the problems occur CORTEX project proposal submitted to the Euratom 2016-2017 work program (CORe monitoring Techniques and EXperimental validation and demonstration) CORTEX obtained the NUGENIA label in August 2016 CORTEX project approved for funding by the European Commission in February 2017 Presentation aimed at giving an overview of the project
  5. 5. Project concept
  6. 6. Project concept • Signal analysis techniques of help… but insufficient for backtracking the nature and spatial distribution of possible anomalies Need to be able to invert the reactor transfer function  , ,G p r r  , ,G p r r , r  ,P p r
  7. 7. Project concept • Signal analysis techniques of help… but insufficient for backtracking the nature and spatial distribution of possible anomalies Need to be able to invert the reactor transfer function  , ,G p r r   1 , ,G       p r r , r  ,P p r
  8. 8. Project aims • Developing high fidelity tools for simulating stationary fluctuations • Validating those tools against experiments to be performed at research reactors • Developing advanced signal processing techniques (to be combined with the simulation tools) • Demonstrating the proposed methods for both on-line and off-line core diagnostics and monitoring • Disseminating the knowledge gathered from within the project to stakeholders in the nuclear sector
  9. 9. Project participants • Project led and coordinated by Chalmers University of Technology • 17 European organizations involved in the project:  CEA and LGI Consulting (France)  Centre for Energy Research, Hungarian Academy of Sciences – MTA EK (Hungary)  EPFL, KKG, PSI (Switzerland)  GRS, ISTec, PEL, TU Dresden and TU Munich (Germany)  Ιnstitute of Communication & Computer Systems - National Technical University of Athens (Greece)  UJV (Czech Republic)  Uiniversity of Lincoln (UK)  UPM and UPV (Spain)
  10. 10. Project participants • 2 non-European organizations formally involved in the project:  KURRI (Japan)  AMS Corp (USA) + 1 organization informally involved in the project: Nagoya University (Japan) • 3 additional organizations involved in the Advisory End-User Group:  IRSN (France)  KKG (Switzerland)  PEL (Germany)  Ringhals (Sweden)  Tractebel (Belgium)
  11. 11. Project structure • Proposed technical Work Packages (WPs):  WP1: Development of modelling capabilities for reactor noise analysis (lead organization: Chalmers University of Technology, Sweden) Objectives: To develop modelling capabilities allowing the determination, for any reactor core, of the fluctuations in neutron flux resulting from known perturbations applied to the system To express such perturbations as either fluctuations of macroscopic cross-sections based on expert opinion, or in more physical terms, such as vibrations of components (FSI) To evaluate the uncertainties associated to the estimation of the reactor transfer function and to perform sensitivity analysis in reactor dynamic calculations
  12. 12. Project structure • Proposed technical Work Packages (WPs):  WP2: Validation of the modelling tools against experiments in research reactors (lead organization: PSI/EPFL, Switzerland) Use of the AKR-2 (TU Dresden) and CROCUS (EPFL) research reactors for reactor transfer function validation Objectives: Validation of the modelling tools produced in WP1 against experimental measurements: localized absorber of variable strength + moving absorber Development of new detectors
  13. 13. Project structure • Proposed technical Work Packages (WPs):  WP3: Development of advanced signal processing and machine learning methodologies for analysis of plant data (lead organization: University of Lincoln, UK) Objectives: Detection of abnormal fluctuations and their classification Inversion of the reactor transfer function Handling of the scarcity of in-core instrumentation Handling of intermittences
  14. 14. Project structure • Proposed technical Work Packages (WPs):  WP4: Application and demonstration of the developed modelling tools and signal processing techniques against plant data (lead organization: GRS, Germany) Objectives: Demonstration of the applicability and usefulness of the tools Detection of abnormal fluctuations, understanding of their origin and classification according to their safety impact Recommendations about in-core/out-of-core instrumentation
  15. 15. Project structure • Other Work Packages (WPs):  WP5: Knowledge dissemination and education (lead organization: Chalmers University of Technology, Sweden) Objectives: Designing of short courses on reactor dynamics, reactor neutron noise, and signal processing methods Development of a workshops series: (a) to present the application of the models and methodologies to real cases; and (b) to discuss recommendations and improvements for monitoring reactor operations and future advancements with end- users Setting up communication tools for the public and interested stakeholders
  16. 16. Project structure • Other Work Packages (WPs):  WP6: Project management (lead organization: Chalmers University of Technology, Sweden) Objectives: Timely and qualitative achievement of the project results to reach the objectives and contractual commitments
  17. 17. Project structure
  18. 18. Project implementation • Project to be started on September 1st, 2017 • 4 year-duration • First demonstrations on actual plant data to be started in year 3
  19. 19. Project implementation • Distribution of efforts:  WP1: 200.25 man-months  WP2: 127 man-months  WP3: 106.5 man-months  WP4: 132 man-months  WP5: 47.75 man-months  WP6: 20 man-months • Funding:  Approved funding: 5.093 M€  Total eligible costs: 5.243 M€
  20. 20. Project relevance to NUGENIA • Nugenia Technology Roadmap 3 (Improved Reactor Operation) Improvement of the operation economics Improvement of core management modelling tools and core monitoring and instrumentation • Discussions with NUGENIA members about possible interactions between CORTEX and NUGENIA
  21. 21. Conclusions • Core monitoring becoming increasingly important • Need to develop the necessary tools and expertise before the problems occur • Interested in the project and its outcome? Let us know! • Follow the project on LinkedIn, Twitter and Facebook
  22. 22. CORTEX – CORe monitoring Techniques and Experimental validation and demonstration Prof. Christophe Demazière Chalmers University of Technology Department of Physics Division of Subatomic and Plasma Physics SE-412 96 Gothenburg, Sweden demaz@chalmers.se Task Force on Deterministic REActor Modelling at Chalmers University of Technology

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